Question

Removing vitreous humour does it chage power of the eye?

Answer 1

it's does effect because it protects the eye in some way

Answer 2

hope it's help you

Pars plana vitrectomy is a general term for a group of operations accomplished in the deeper part of the eye, all of which involve removing some or all of the vitreous humor—the eye's clear internal jelly.
removing small portions of the vitreous humor from the front structures of the eye—often because these are tangled in an intraocular lens or other structures.